It is representing a fact
It might be said that Sergei´s reaction towards Yoni at his door might be option D. he might have been frightened because Yoni could discover the gold fish. so his reaction was kind of harsh, he did not what to answer the questions and he wanted the boy to go away from his house.
The indirect object usually expressed the beneficiary of an action: for whom or for whose sake was the task performed. Here it's "her" - she is getting the flowers. The flowers are the direct object.
the thesis statement is the answer
